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KLAUS UNION GmbH & Co. KG
Blumenfeldstraße 18
D-44795 Bochum
Tel: +49 234 4595-0
Fax: +49 234 4595-7000
www.klaus-union.de




Multi-stage magnetic coupling ring casing pumps

Following is a partial listing of the very extensive combination options:

SLM GVO W (tension rod version)

Design features

  • Process oriented design
  • Tension rod version (variable seal)
  • 2-6 stages
  • Magnet drive
  • Leakproof
  • Horizontally mounted
  • Modular System
  • Oiled ball bearing
  • Thermal barrier
  • Secondary seal

Technical data
Q up to 300 m³/h with 50Hz / up to 360 m³/h with 60Hz
H up to 400 m with 50Hz / up to 580 m with 60Hz
t from -40°C up to +250°C
p up to PN 63
Special constructions up to PN400
Higher outputs available.

Materials
Standard construction

Casing elements: 316 SS or nodular iron
Impellers: 316 SS
Isolation shell: 316 Ti/Hastelloy C4
Magnet carrier: 316 Ti
Internal bearings: silicon carbide
Bearing lantern: nodular iron
Bearing carrier: ductile iron
Other materials available

SLM GVOT H12W (barrel design)

Design features

  • Process oriented design
  • Barrel design model (no variable seal)
  • only 2 static seals
  • 2-6 stages
  • Magnet drive
  • Leakproof
  • Horizontally mounted
  • Modular System
  • Jacketed bearing lantern
  • Barrel casing heated
  • Heating connection
  • Oiled ball bearing
  • Thermal barrier
  • Secondary seal

Technical data
Q up to 300 m³/h with 50Hz / up to 360 m³/h with 60Hz
H up to 400 m with 50Hz / up to 580 m with 60Hz
t from -40 °C up to +250 °C
p up to PN 63
Special constructions up to PN400
Higher outputs available.

Materials
Standard construction
Casing elements: 316 SS or nodular iron
Impellers: 316 SS
Isolation shell: 316 Ti/Hastelloy C4
Magnet carrier: 316 Ti
Internal bearings: silicon carbide
Bearing lantern: nodular iron
Bearing carrier: ductile iron
Other materials available

SLM HVO (back to back design)

Design features

  • Process oriented design
  • 2-6 stages
  • Impellers realized in pairs or back-to-back
  • Magnet drive
  • Leakproof
  • Horizontally mounted
  • Modular system
  • Oiled ball bearing 
  • Thermal barrier
  • Secondary seal

Technical data
Q up to 450 m³/h with 50Hz / up to 540 m³/h with 60Hz
H up to 900 m with 50Hz / up to 1300 m with 60Hz
t from -40 °C up to +180 °C
p up to PN 100
Higher outputs available.

Materials
Standard construction

Casing elements: 316 SS or nodular iron
Impellers: 316 SS
Isolation shell: 316 Ti/Hastelloy C4
Magnet carrier: 316 Ti
Internal bearings: silicon carbide
Bearing lantern: nodular iron
Bearing carrier: ductile iron
Other material combinations available

Identification code:


Bearing carrier realizations:

Bearing carrier

Realization

Comments

SLM GVS

Standard

Greased, with deep groove ball bearing

SLM GVO

Standard

Oiled, with deep groove ball bearing

SLM HVO

Standard

Oiled, with deep groove ball bearing

 
Close-coupled realization:

Variants

Realization

Comments

SLM GVB      

Close-coupled pump

Motor stool (without shaft coupling)              

 
Suffixes (designs):

H5

heated pump casing

H2

jacketed bearing lantern

S

thermal barrier without secondary seal

W

thermal barrier with secondary seal

F

internal filter

E1

external feeding, internal secondary-flow boring enclosed

E2

external flushing and venting; internal secondary-flow boring non-enclosed

E1F

external secondary flow with main flow filter per DGRL

J

inducer

 

Design variants

Heated pump H5 and/or H2
The pumps are outfitted with a heat jacket and pump casing (H5) and/or a heat jacket in the bearing lantern (H2). Both heat jackets can be realized either separately or in conjunction with a bypass line. The heat jackets in the standard construction are rated for operating pressure of 16 bar at 200 °C (steam) or 6 bar at 350 °C. The heat jackets can also be used for cooling.

S or W thermal barrier and secondary seal
The thermal barrier acts as a structural element between the bearing carrier (in the bearing carrier model) or drive motor (in the close coupled model), whereas the hydraulic system allows for heat transfer. This reduces ball bearing temperatures in the gearing when hot liquids are being transported. A radial shaft sealing ring can also be integrated into the thermal barrier for purposes of sealing the magnet driver. The sealing ring acts as a secondary seal that prevents the product from leaking into the environment through a leak in the isolation shell. In order for this secondary seal to be used, the magnet driver chamber must be monitored so that leaks can be detected in good time.

Internal filter F
When solids-containing liquids are being transported, the internal filter prevents inadmissibly large particles from entering the flow channels, and from there the magnetic coupling and internal bearings.

External feed and flushing connections E1 and E2
These external connections allow for external flushing, feeding and/or venting. Connection E1 is used in situations where a continuous feed into the magnet drive is desired. Connection E2 is used suitable for short-term flushing, or for external venting of the magnetic coupling.

Inducer J
Inducers are often used in cases where the installation's NPSH values are extremely low. Inducers substantially reduce pump NPSH throughout the installation without altering pump characteristics. Inducer J can be retrofitted on existing pumps, in most cases with only a minimum amount of pump modification.